What are Progressive Web Apps?

The popularity of PWA is growing at a very fast in the field of e-commerce, business,
online news portal and other fields because of its peculiar characteristics listed
below as follows:1. Faster User Interface Support
Web developers can now load an entire website to browser after just one pageview even on slow networks.2. Home screen Shortcut
Mobile users can install PWA site to their home screen like a Native App.3. Offline Support
Implementation of service worker makes it able to work offline. Website can now be accessible even user lost the internet connectivity. PWA sites cache content to ensure that some content can be served when a user is offline.4. Background Processes
If the user facing poor connectivity or offline, the browser store all the form submission data and request, When connectivity returns it re-sent all the data in background.5. Secure
PWA sites use HTTPS connections for enhanced security.

Lets back to setup PWA in Magento 2….

PWA Studio project used the modern tools and libraries:Webpack
Webpack’s primary function is to create one or more bundles from the dependencies in your project’s modules.ReactJs
A JavaScript library for building user interfaces.Redux
A JavaScript library used for managing state in a web application.GraphQL
A data query language on the client side and a service layer on the server side.

I have cloned this repository in magento root directory ex: /var/www/html/mage0

4. You will see the pwa-studio directory in /var/www/html/mage0.
Enter into this directoy:

cd pwa-studio/

5. Run

yarn install

6. Specify the Magento backend server in .env file. you can see the .env.dist file in/var/www/html/mage0/pwa-studio/packages/venia-concept/ direcoty. If you are not
able see, enable show hidden files. Now create .env file from this env.dist

7.1 Generate SSL certificate because PWA features requires an HTTPS Secure Domain. From the root directory of PWA (/pwa-studio) run below command:

yarn buildpack create-custom-origin packages/venia-concept

Note: 7.1 Feature requires administrative access.

8. Now let install sample data for venia-theme to make it good looking.

9. Find the deployVeniaSampleData.sh file in/var/www/html/mage0/pwa-studio/packages/venia-concept/ directory. and copy this
file in your Magento root directory. Now it must look like/var/www/html/mage0/deployVeniaSampleData.sh Now run:

bash deployVeniaSampleData.sh

10. After successful installation run:

bin/magento setup:upgrade

bin/magento indexer:reindex

bin/magento cache:flush

Open your magento instance, you will be able to see the installed sample data like:

11. Now go back to pwa-studio directory /var/www/html/mage0/pwa-studio and
start Server.

yarn run build

Above command may give the permission error, for that run the above command with sudo.

sudo yarn run build

12. Run server, Use any of the following commands from the project root directory to start
the server:

yarn run watch:venia
yarn run watch:all
yarn run build && yarn run stage:venia

Above commands may give the permission error, for that run the above command with sudo.

Note: You might get the issues that product’s images are not loading on PWA.
To fix this issue, create a virtual host, as i have created https://magento2-pwa.com that must be pointing to your pub directory of Magento instance not to the root directory of you magento.

Congratulations! You have set up your development environment for the Venia theme project.

Setup Venia Project on Production Server

Tested on version: @magento/pwa-buildpack v3.0.0

Note: Make sure HTTPS is enabled for your domain.

Lets we have a domain https://mahesh.webkul.com we want to setup PWA on this server.

Follow the same steps (as sudo user) as i have explain above.

Enable a port on this server to run Node Server on this port ex (Port: 8724).